package com.briup.day13;

public class Test_test {
    public void test1(int i){

    }
    public void test2(Integer i){

    }
    public void test3(long i){

    }
    public void test4(Long i){}
    public static void main(String[] args) {
        Test_test test=new Test_test();
        test.test1(1);
        test.test2(1);
        test.test3(1);
        test.test4(1L);
        // test.test4(1);//类型不一致不可以
        //Byte Short Character类型要考虑常量优化机制
    }
}
